Home / 3,087.83-4,261.21-1,761.50

Finding the Fourth Proportional to 3,087.83, 4,261.21 and 1,761.50

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Solution

The fourth proportional to 3,087.83, 4,261.21 and 1,761.50 is: 2,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.83 : 4,261.21 = 1,761.50 : x
  2. Step 2: Convert to fraction form
    3,087.83/4,261.21 = 1,761.50/x
  3. Step 3: Cross multiply
    3,087.83x = 4,261.21 × 1,761.50
  4. Step 4: Simplify right side
    3,087.83x = 7,506,121.42
  5. Step 5: Solve for x
    x = 7,506,121.42/3,087.83
  6. Step 6: Final answer
    x = 2,430.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.